清空筛选条件
清空筛选条件

help for an exercise answer

2 次查看（过去 30 天）
N/A
N/A 2023-9-16
回答： Jerbin J 2023-9-17
The size of two vectors is given by the following commands:
>> size(a)
ans = 5 1
>> size(b)
ans = 1 5
Which operation is allowed? Multiple propositions can be true.
a + b
a' - b
a * b
a' * b
a - b
  1 个评论
Steven Lord
Steven Lord 2023-9-17
Why don't you tell us which ones you think are allowed and which ones you don't (and why you think that way) and we can tell you whether you're right or not (and if you tell us your reasoning, we can explain why.)

请先登录，再进行评论。

请先登录，再回答此问题。

回答（2 个）

Dyuman Joshi
Dyuman Joshi 2023-9-16
A simple way is to define 2 vectors (choose values as per your liking) of the given size and find out which are allowed and which are not.
If you want to learn more about the topic in hand, refer to -
Compatible Array Sizes for Basic Operations
Array vs. Matrix Operations
Jerbin J
Jerbin J 2023-9-17
a + b,a' - b,a * b,a - b
These operations can be performed.
a'*b,cannot be performed because:Incorrect dimensions for matrix multiplication.

类别

在 Help Center 和 File Exchange 中查找有关 Matrices and Arrays 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by